Xerox 6250N Service Manual - Page 200

Repeating and/or Random Spots Spots of toner are randomly scattered across the page or at a fixed repeating interval. Note Depending on the type of paper and environmental conditions, some light amount of random background spotting (backgrounding) is normal. The whiter and glossier the paper, the more noticeable it will be. S6200-276 Troubleshooting Procedure Step 1 2 3 4 5 6 Check Yes Print the Repeating Defects Page from the Troubleshooting Print Quality Problems Menu. Do the defects correspond to a Routine Maintenance Item? See "Repeating Defects" on page 5-3. Replace the indicated Routine Maintenance Item. Replace the Imaging Unit, PL 9.1.3. Complete Does the image quality improve if the Imaging Unit is replaced? Replace the Transfer Roller, PL 8.1.12. Does the image quality improve if the Transfer Roller is replaced? Complete Replace the Fuser Assembly, PL 8.1.1. Does the image quality improve if the Fuser is replaced? Complete Replace the SUB-HVPS, page 8-87. Complete Does the image quality improve if the SUB HVPS is replaced? Replace the Laser Unit, page 8-68. Complete Does the image quality improve if the Laser Unit is replaced? No Go to Step 2. Go to Step 3. Go to Step 4. Go to Step 5. Go to Step 6. Replace the Engine Control Board, page 8-107. Print-Quality Troubleshooting 5-19